1. Write two equations of the cosine function with a. amplitude=5, period= 4pi, phase shift= pi/6, vertical shift= none
b. amplitude= 1, period= pi/4, phase shift= pi, vertical shift= -1
2. Write two equations of the sine function with
a. amplitude= 6, period= pi/2, phase shift= -pi/8, vertical shift= none
b. amplitude= 1/2, period= 2pi, phase shift= none, vertical shift= 3

i do not know

Step-by-step explanation:

points

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950